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Fibroblast activation protein

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https://www.readbyqxmd.com/read/28718381/histological-and-immunohistochemical-characterization-of-the-similarity-and-difference-between-ovarian-endometriomas-and-deep-infiltrating-endometriosis
#1
Xishi Liu, Qi Zhang, Sun-Wei Guo
Ovarian endometrioma (OMA) and deep infiltrating endometriosis (DIE) have long been recognized to have different histology and, as such, postulated to be 2 separate disease entities. Few studies, however, have attempted to elucidate the causes for their differences. Making use of ectopic endometrial tissue samples from 25 and 20 women with OMA and DIE, respectively, and control endometrial tissue samples from 25 women without endometriosis, we conducted an immunohistochemical analysis to evaluate the expression of a group of carefully chosen markers for epithelial-mesenchymal transition (EMT), fibroblast-to-myofibroblast transdifferentiation (FMT), smooth muscle metaplasia (SMM), fibrosis, vascularity, hormonal receptors, and proteins involved in epigenetic modifications...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/28718374/cancer-associated-fibroblasts-secrete-fgf-1-to-promote-ovarian-proliferation-migration-and-invasion-through-the-activation-of-fgf-1-fgfr4-signaling
#2
Yuanzhen Sun, Xiaoli Fan, Qing Zhang, Xiaoyu Shi, Guangwei Xu, Cuimin Zou
Ovarian cancer is the most lethal gynecologic malignancy, due to its high propensity for metastasis. Cancer-associated fibroblasts, as the dominant component of tumor microenvironment, are crucial for tumor progression. However, the mechanisms underlying the regulation of ovarian cancer cells by cancer-associated fibroblasts remain little known. Here, we first isolated cancer-associated fibroblasts from patients' ovarian tissues and found that cancer-associated fibroblasts promoted SKOV3 cells' proliferation, migration, and invasion...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28716760/properties-of-purified-cyp2r1-in-a-reconstituted-membrane-environment-and-its-25-hydroxylation-of-20-hydroxyvitamin-d3
#3
Chloe Y S Cheng, Tae-Kang Kim, Saowanee Jeayeng, Andrzej T Slominski, Robert C Tuckey
Recent studies indicate that CYP2R1 is the major 25-hydroxylase catalyzing the first step in vitamin D activation. Since the catalytic properties of CYP2R1 have been poorly studied to date and it is a membrane protein, we examined the purified enzyme in a membrane environment. CYP2R1 was expressed in E. coli and purified by nickel affinity- and hydrophobic interaction-chromatography and assayed in a reconstituted membrane system comprising phospholipid vesicles plus purified human NADPH-P450 oxidoreductase...
July 14, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28716707/non-oxidizable-hmgb1-induces-cardiac-fibroblasts-migration-via-cxcr4-in-a-cxcl12-independent-manner-and-worsens-tissue-remodeling-after-myocardial-infarction
#4
Stefania Di Maggio, Giuseppina Milano, Francesco De Marchis, Alessandro D'Ambrosio, Matteo Bertolotti, Blanca Soler Palacios, Ileana Badi, Elena Sommariva, Giulio Pompilio, Maurizio C Capogrossi, Angela Raucci
Myocardial infarction (MI) is a major health burden worldwide. Extracellular High mobility group box 1 (HMGB1) regulates tissue healing after injuries. The reduced form of HMGB1 (fr-HMGB1) exerts chemotactic activity by binding CXCL12 through CXCR4, while the disulfide form, (ds-HMGB1), induces cytokines expression by TLR4. Here, we assessed the role of HMGB1 redox forms and the non-oxidizable mutant (3S) on human cardiac fibroblast (hcFbs) functions and cardiac remodeling after infarction. Among HMGB1 receptors, hcFbs express CXCR4...
July 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28714804/cellular-proliferation-and-differentiation-induced-by-single-layer-molybdenum-disulfide-and-mediation-mechanisms-of-proteins-via-the-akt-mtor-p70s6k-signaling-pathway
#5
Wei Zou, Xingli Zhang, Mengyang Zhao, Qixing Zhou, Xiangang Hu
Single-layer molybdenum disulfide (SLMoS2) is a novel kind of 2D nanosheet that has attracted great attention regarding its use in biosensors, drug delivery, tissue engineering and therapy. However, our results demonstrated that SLMoS2 accelerated proliferation and promoted myogenic differentiation and epithelial-mesenchymal transition (EMT) in human embryonic lung fibroblasts (HELFs). The abnormal proliferation and differentiation of HELFs contribute to idiopathic pulmonary fibrosis. Specifically, SLMoS2 significantly stimulated the expression of myofibroblast- and mesenchymal-associated genes and proteins...
July 17, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28714692/design-synthesis-and-pharmacological-evaluation-of-novel-multisubstituted-pyridin-3-amine-derivatives-as-multitargeted-protein-kinase-inhibitors-for-the-treatment-of-non-small-cell-lung-cancer
#6
Wei Zhu, Hui Chen, Yulan Wang, Jiang Wang, Xia Peng, Xianjie Chen, Yinglei Gao, Chunpu Li, Yulong He, Jing Ai, Meiyu Geng, Mingyue Zheng, Hong Liu
A novel series of pyridin-3-amine derivatives were designed, synthesized, and evaluated as multitargeted protein kinase inhibitors for the treatment of non-small cell lung cancer (NSCLC). Hit 1 was first disclosed by in silico screening against fibroblast growth factor receptors (FGFR), which was subsequently validated by in vitro experiments. The structure-activity relationship (SAR) of its analogues was then explored to afford novel FGFR inhibitors 2a-2p and 3a-3q. Among them, 3m showed potent inhibition against FGFR1, 2, and 3...
July 17, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28714016/elastin%C3%A2-derived-peptides-are-involved-in-the-processes-of-human-temporomandibular-disorder-by-inducing-inflammatory-responses-in-synovial-cells
#7
Kazuhiko Kobayashi, Rei Jokaji, Mayuko Miyazawa-Hira, Shigeyuki Takatsuka, Akira Tanaka, Kazuhiro Ooi, Hiroyuki Nakamura, Shuichi Kawashiri
Temporomandibular joint dysfunction (TMD) is a collection of clinical symptoms that involve masticatory muscles and the temporomandibular joint (TMJ). Common symptoms include limited jaw motion and joint sound/pain, along with TMJ disc displacement. TMD is frequently associated with synovitis, a chronic inflammation of the synovium. Fibroblast‑like synovial cells have been identified to produce several inflammatory mediators and may have an important role in the progression of TMJ inflammation. Degradation of the extracellular matrix molecule elastin may lead to the release of bioactive peptides...
July 15, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713904/bisphosphonate-inhibits-the-expression-of-cyclin%C3%A2-a2-at-the-transcriptional-level-in-normal-human-oral-keratinocytes
#8
Rachel S Lee, Suhjin Sohn, Ki-Hyuk Shin, Mo K Kang, No-Hee Park, Reuben H Kim
Nitrogen-containing bisphosphonates (N-BPs) are the most widely used anti-resorptive agents in the treatment of bone-related diseases. N-BPs inhibit bone resorption by specifically targeting osteoclasts, bone-resorbing cells. However, soft tissue toxicity, such as oral or gastrointestinal (GI) ulcerations has frequently been reported in N-BP users, suggesting that N-BPs may also directly target cells other than osteoclasts. Previously, we reported that BPs inhibit proliferation without inducing the apoptosis of normal human oral keratinocytes (NHOKs)...
July 12, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28713274/stimulation-of-adenosine-a2b-receptor-inhibits-endothelin-1-induced-cardiac-fibroblast-proliferation-and-%C3%AE-smooth-muscle-actin-synthesis-through-the-camp-epac-pi3k-akt-signaling-pathway
#9
Sarawuth Phosri, Ajaree Arieyawong, Kwanchai Bunrukchai, Warisara Parichatikanond, Akiyuki Nishimura, Motohiro Nishida, Supachoke Mangmool
Background and Purpose: Cardiac fibrosis is characterized by an increase in fibroblast proliferation, overproduction of extracellular matrix proteins, and the formation of myofibroblast that express α-smooth muscle actin (α-SMA). Endothelin-1 (ET-1) is involved in the pathogenesis of cardiac fibrosis. Overstimulation of endothelin receptors induced cell proliferation, collagen synthesis, and α-SMA expression in cardiac fibroblasts. Although adenosine was shown to have cardioprotective effects, the molecular mechanisms by which adenosine A2 receptor inhibit ET-1-induced fibroblast proliferation and α-SMA expression in cardiac fibroblasts are not clearly identified...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28711648/alteration-of-pdgfr%C3%AE-akt-mtor-pathway-signaling-in-fibrosarcomatous-transformation-of-dermatofibrosarcoma-protuberans
#10
Yuka Hiraki-Hotokebuchi, Yuichi Yamada, Kenichi Kohashi, Hidetaka Yamamoto, Makoto Endo, Nokitaka Setsu, Kuma Yuki, Takamichi Ito, Yukihide Iwamoto, Masutaka Furue, Yoshinao Oda
Dermatofibrosarcoma protuberans (DFSP) is a cutaneous mesenchymal tumor of intermediate malignancy and fibroblastic/myofibroblastic differentiation. Fibrosarcomatous (FS) component is a high-grade component of DFSP. The detailed oncogenic difference between DFSP and FS components is not clear. We thus investigated the Akt-mTOR pathway in both components. We used 65 tumor samples obtained from 65 patients. The phosphorylation of Akt-mTOR pathway proteins (Akt, mTOR, 4EBP1, and S6RP) and PDGFRα/β was assessed by immunohistochemical staining, the results of which were confirmed by western blotting...
July 12, 2017: Human Pathology
https://www.readbyqxmd.com/read/28711492/species-specific-real-time-rt-pcr-analysis-of-expression-of-stromal-cell-genes-in-a-tumor-xenotransplantation-model-in-mice
#11
Evzen Krepela, Petr Busek, Marek Hilser, Zdislava Vanickova, Aleksi Sedo
Human tumor xenografts in mice together with the species-specific analysis of expressed genes allow to study the molecular processes driving tumor growth and progression in vivo and help to develop and evaluate anticancer therapies. In the present work, we designed and validated species-specific real-time RT-PCR assays for discrimination and quantitation of expression of human and mouse transcripts in cancer and stromal cells including dipeptidyl peptidase (DPP) 4, DPP8, DPP9, fibroblast activation protein (FAP) and CXC chemokine receptor 4 in mixed human-mouse biological samples...
July 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28711329/cardiac-reprogramming-factor-gata4-reduces-postinfarct-cardiac-fibrosis-through-direct-repression-of-the-profibrotic-mediator-snail
#12
Megumi Mathison, Vivek P Singh, Deepthi Sanagasetti, Lina Yang, Jaya Pratap Pinnamaneni, Jianchang Yang, Todd K Rosengart
OBJECTIVE: The administration of a variety of reprogramming factor cocktails has now been shown to reprogram cardiac fibroblasts into induced cardiomyocyte-like cells. However, reductions in ventricular fibrosis observed after reprogramming factor administration seem to far exceed the extent of induced cardiomyocyte-like cell generation in vivo. We investigated whether reprogramming factor administration might primarily play a role in activating antifibrotic molecular pathways. METHODS: Adult rat cardiac fibroblasts were infected with lentivirus encoding the transcription factors Gata4, Mef2c, or Tbx5, all 3 vectors, or a green fluorescent protein control vector...
June 21, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28711237/precise-role-of-dermal-fibroblasts-on-melanocyte-pigmentation
#13
REVIEW
Yinjuan Wang, Céline Viennet, Sophie Robin, Jean-Yves Berthon, Li He, Philippe Humbert
Dermal fibroblasts are traditionally recognized as synthesizing, remodeling and depositing collagen and extracellular matrix, the structural framework for tissues, helping to bring thickness and firmness to the skin. However, the role of fibroblasts on skin pigmentation arouses concern recently. More is known about the interactions between epidermal melanocytes and keratinocytes. This review highlights the importance of fibroblast-derived melanogenic paracrine mediators in the regulation of melanocyte activities...
July 1, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28710602/eldecalcitol-ed-71-an-analog-of-1%C3%AE-25-oh-2d3-inhibits-the-growth-of-squamous-cell-carcinoma-scc-cells-in-vitro-and-in-vivo-by-down-regulating-expression-of-heparin-binding-protein-17-fibroblast-growth-factor-binding-protein-1-hbp17-fgfbp-1-and-fgf-2
#14
T Shintani, F Takatsu, S N Z Rosli, E Usui, A Hamada, K Sumi, Y Hayashido, S Toratani, Tetsuji Okamoto
Heparin-binding protein 17 (HBp17)/fibroblast growth factor-binding protein-1 (FGFBP-1) was first purified from medium conditioned by A431 cells for its capacity to bind to fibroblast growth factors 1 and 2 (FGF-1 and -2). Among FGF family members, FGF-2 is a potent mitogen for various cell types, including vascular endothelial cells, fibroblasts, and cancer cells such as oral squamous cell carcinoma (OSCC) cells. Besides being well known in bone metabolism, the active form of vitamin D3, i.e., 1α,25(OH)2D3 (1,25D3), was reported to have protective effects for heart disease and cancer...
July 14, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28710569/low-shear-modeled-microgravity-grown-penicillium-chrysogenum-mediated-biosynthesis-of-silver-nanoparticles-with-enhanced-antimicrobial-activity-and-its-anticancer-effect-in-human-liver-cancer-and-fibroblast-cells
#15
Sunirmal Sheet, Yesupatham Sathishkumar, Allur Subramaniyam Sivakumar, Kwan Seob Shim, Yang Soo Lee
Gravitational force and shear forces induce various changes in gene expression and metabolite production of microorganisms. Previous reports have shown that there are differences in the expression of different sets of proteins and enzymes under microgravity conditions compared to normal gravity. The aim of this study is to utilize culture filtrates of Penicillium chrysogenum grown under microgravity and normal conditions to synthesize silver nanoparticles and to examine whether there is any difference between their physiochemical and biological function...
July 14, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28710437/inhibition-of-ctgf-ameliorates-peritoneal-fibrosis-through-suppression-of-fibroblast-and-myofibroblast-accumulation-and-angiogenesis
#16
Norihiko Sakai, Miki Nakamura, Kenneth E Lipson, Taito Miyake, Yasutaka Kamikawa, Akihiro Sagara, Yasuyuki Shinozaki, Shinji Kitajima, Tadashi Toyama, Akinori Hara, Yasunori Iwata, Miho Shimizu, Kengo Furuichi, Shuichi Kaneko, Andrew M Tager, Takashi Wada
Peritoneal fibrosis (PF) is a serious complication in various clinical settings, but the mechanisms driving it remain to be fully determined. Connective tissue growth factor (CTGF) is known to regulate fibroblast activities. We therefore examined if CTGF inhibition has anti-fibrotic effects in PF. PF was induced by repetitive intraperitoneal injections of chlorhexidine gluconate (CG) in mice with type I pro-collagen promoter-driven green fluorescent protein (GFP) expression to identify fibroblasts. FG-3019, an anti-CTGF monoclonal antibody, was used to inhibit CTGF...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710365/suppression-of-cell-migration-by-phospholipase-c-related-catalytically-inactive-protein-dependent-modulation-of-pi3k-signalling
#17
Satoshi Asano, Yuri Taniguchi, Yosuke Yamawaki, Jing Gao, Kae Harada, Hiroshi Takeuchi, Masato Hirata, Takashi Kanematsu
The metabolic processes of phosphatidylinositol 4,5-bisphosphate [PI(4,5)P2] into PI(3,4,5)P3 and the subsequent PI(3,4,5)P3 signalling are involved in cell migration. Dysfunctions in the control of this pathway can cause human cancer cell migration and metastatic growth. Here we investigated whether phospholipase C-related catalytically inactive protein (PRIP), a PI(4,5)P2-binding protein, regulates cancer cell migration. PRIP overexpression in MCF-7 and BT-549 human breast cancer cells inhibited cell migration in vitro and metastasis development in vivo...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28709002/exosome-rna-unshielding-couples-stromal-activation-to-pattern-recognition-receptor-signaling-in-cancer
#18
Barzin Y Nabet, Yu Qiu, Jacob E Shabason, Tony J Wu, Taewon Yoon, Brian C Kim, Joseph L Benci, Angela M DeMichele, Julia Tchou, Joseph Marcotrigiano, Andy J Minn
Interactions between stromal fibroblasts and cancer cells generate signals for cancer progression, therapy resistance, and inflammatory responses. Although endogenous RNAs acting as damage-associated molecular patterns (DAMPs) for pattern recognition receptors (PRRs) may represent one such signal, these RNAs must remain unrecognized under non-pathological conditions. We show that triggering of stromal NOTCH-MYC by breast cancer cells results in a POL3-driven increase in RN7SL1, an endogenous RNA normally shielded by RNA binding proteins SRP9/14...
July 13, 2017: Cell
https://www.readbyqxmd.com/read/28707818/inhibition-of-fibroblast-growth-factor-receptor-with-azd4547-mitigates-juvenile-nasopharyngeal-angiofibroma
#19
Tran Le, Jacob New, Joel W Jones, Shireen Usman, Sreeya Yalamanchali, Ossama Tawfik, Larry Hoover, Dan E Bruegger, Sufi Mary Thomas
BACKGROUND: Juvenile nasopharyngeal angiofibroma (JNA) is a benign tumor that presents in adolescent males. Although surgical excision is the mainstay of treatment, recurrences complicate treatment. There is a need to develop less invasive approaches for management. JNA tumors are composed of fibroblasts and vascular endothelial cells. We identified fibroblast growth factor receptor (FGFR) and vascular endothelial growth factor (VEGF) expression in JNA-derived fibroblasts. FGFR influences fibroblast proliferation and VEGF is necessary for angiogenesis...
July 14, 2017: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/28706754/smart-release-nano-formulation-of-cytochrome-c-and-hyaluronic-acid-induces-apoptosis-in-cancer-cells
#20
C M Figueroa, B N Suárez, A M Molina, J C Fernández, Z Torres, K Griebenow
Herein we tested a nanosized cancer-cell targeted delivery system based on cytochrome c (Cyt c) and hyaluronic acid. Cyt c was chosen since it is a per se non-toxic protein but causes apoptosis when delivered to the cytoplasm of target cells. Hyaluronic acid was employed to create the nanosized delivery system with passive targeting capability in order to exploit the enhanced permeation and retention (EPR) effect and active targeting capability of hyaluronic acid. In addition, our goal was to incorporate a smart release strategy to only promote protein release upon reaching its target...
February 2017: Journal of Nanomedicine & Nanotechnology
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